Erm, I don't see window1 in that anywhere...
tell application "Finder"
activate
select Finder window 1
select Finder window 1
set target of Finder window 1 to folder "Hypotheses Section" of folder "MOS Templates" of disk "#8"
select Finder window 1
select Finder window 1
open document file "t test of Means " of folder " One Population" of folder "Hypotheses Testing" of folder "Hypotheses Section" of folder "MOS Templates" of disk "#8"
end tell
tell application "Microsoft Excel"
Activate
«event miscdosc» "DIRECTORY(\"Macintosh HD:Microsoft Office X:Templates:My Templates\")"
Select Range "R1C1:R1C2"
Save ActiveWorkbook In "Macintosh HD:Microsoft Office X:Templates:My Templates:t test of Means" As xlNormal Password "" WriteReservedPassword "" without ReadOnlyRecommended and CreateBackup
Close ActiveWindow
end tell
tell application "Finder"
activate
select Finder window 1
select Finder window 1
open document file "Variance Test w/ Chi Sq" of folder " One Population" of folder "Hypotheses Testing" of folder "Hypotheses Section" of disk "#8"
end tell